From in-class active learning to homework assignments, to secure online quizzes and exams, Aktiv Chemistry’s all-in-one platform provides a comprehensive set of features for formative and summative assessments. Synonyms for ACTIVE: operating, operational, operative, functioning, running, working, functional, on; Antonyms of ACTIVE: inactive, dead, broken, inoperative, nonoperative, nonfunctional, nonfunctioning, useless Active sentences, such as The dog chased the cat, are more concise than passive sentences like The cat was chased by the dog. Speechwriters should use active verbs for a strong, direct style. Active is the most general, connoting physical or mental exertion in a variety of contexts: an active toddler; an active imagination; remained active in later years by walking and swimming. When you use active verbs in your written work, rather than passive ones, it sounds clearer and more direct. Active sentences, such as 'The dog chased the cat ', are more concise than passive sentences like 'The cat was chased by the dog '. ACTIVE.com publishes original and syndicated articles providing tips, training plans, advice and ideas for active individuals. Topics covered include running, triathlon, fitness, cycling, kids and family, nutrition, health and wellness, outdoors and other sports and activities. What is a basic definition of active? Active is an adjective that describes something as involving a lot of energetic work or as engaging in action, operation, or motion. ACTIVE powers the world’s events and activities and connects people with the things they love to do. Find, register, or learn about races, local events, sports, and things to do near you. The meaning of ACTIVE is characterized by action rather than by contemplation or speculation. How to use active in a sentence. Something that is active is characterized by movement and action. That action might be a random or temporary movement, such as someone who is active and exercises only now and then, or something continuous, like an active strain of a virus.